One inbox for every account
See all accounts together or one at a time, each with its own color. Duplicates sent to several of your addresses show once.
Every inbox you have, all together in one window on your own computer.
Zackem is a desktop email app for Windows and Mac. Work, personal and business accounts from any provider, side by side — and your mail is never stored on our servers.
Windows 10 and 11, 64-bit · macOS 11 or newer, Apple chip or Intel. Free for up to 2 accounts; every feature free for 30 days. Beta build: Windows may show "unknown publisher" — choose More info → Run anyway. On a Mac, the first time: System Settings → Privacy & Security → Open Anyway (how).
All inboxes 24
Needs reply 5
Office — Microsoft 365
Inbox 11
Personal — Gmail
Inbox 8
Store — Yahoo
Inbox 3
Family — iCloud
Inbox 2
FocusedOtherAll
Dana Brooks
Contract revisions — can we meet Tuesday at 2?
Lakeview Dental
Reminder: appointment Thursday 10:30 am
Order #20417
A customer asked about delivery to Albany
Sarah
Photos from Sunday are in the shared album
Accounts payable
Invoice 1180 is due on the 15th
Contract revisions
Dana Brooks · to your Office account
Hi — I've gone through the second draft and marked a few changes in section 4. Can we meet Tuesday at 2 to go over them?
Thanks,
Dana
Marked: needs a reply
Connects to the email you already have
Microsoft 365ExchangeOutlook.comGmailYahooiCloudAOLZohoYour own domain
Your mail goes from your provider to your computer. Nowhere else.
Zackem is not an email service. We never store or read your messages. Your mail stays where it always was — with your email provider — and a copy is kept on your own computer so it opens instantly. (Only when you use Zackem AI does the one email you asked about pass through our server to the AI and back, without being kept.)
Your email provider
Microsoft, Google, Yahoo, Apple or your company's mail server.
Zackem on your computer
Mail, passwords and settings stored on your computer, encrypted by Windows or the Mac Keychain.
Our servers
Not in the path. Your mail is never synced to or stored on them.
Passwords stay with you
Sign-in tokens and app passwords are locked in your computer's own protected storage — Windows Credential Manager or the Mac Keychain — never sent to us.
Nothing sends by itself
Replies, drafts and suggestions wait for you. Zackem only sends when you press Send.
AI only when you ask
AI runs only when you click an AI button — and you can run it entirely on your own computer instead.
Remove an account, remove its data
Deleting an account erases its local copy from your computer completely.
The everyday email work, done in one place
Focused and Other
Real people in Focused, newsletters and notifications in Other. Move a sender once and Zackem remembers.
Unsubscribe in one click
Every mailing list in one screen, with how often each one writes. Unsubscribe, block, or clear out the old mail in a click.
Fast search across everything
Search every account at once, even offline, because your mail is stored on your computer.
Plan my day
One morning view: today's calendar, the emails waiting for your reply, and reminders that are due.
Instant mail and sign-in codes
New mail arrives within seconds, and one-time sign-in codes pop up on screen — click to copy.
Bring your old mail
Import from Outlook (.pst), Thunderbird, eM Client, Windows Mail or Apple Mail, folders and all.
Your language
Built from the ground up for every language, including full right-to-left support for Hebrew, Yiddish and Arabic.
AI built in — no account, no keys
Reply with AI, summaries of one conversation or many emails, translation, "fix my writing", quick replies and voice dictation. Zackem AI works the moment you register: new customers get 20 free tokens, and AI runs only when you ask for it.
Zackem AI
PrivacyOnly the email or draft you ask about goes through our server to the AI and straight back. It is not stored and never used for training.
Cost20 free tokens to start, then packs from $15. About one token per AI reply; summaries, translation and dictation cost much less.
Your own AI account
PrivacyConnect your own Claude, ChatGPT or Gemini. Only the emails you ask about go to that service, directly from your computer.
CostYou pay your AI provider directly (needs the AI assistant module). We add nothing.
On your computer
PrivacyA free AI model runs on your own computer. Nothing leaves it.
Good to knowWorks best on a recent computer with 16 GB of memory; Macs with Apple chips run it especially well.
Off
PrivacyDon't use AI and nothing about your mail leaves your computer.
CostFree.
Add only what your work needs
The core app covers email. Modules add more, and you can switch them on at any time.
Calendar
Your Microsoft, Google and iCloud calendars inside Zackem. Dates in your emails appear as tentative until you confirm them.
Time & billing
Zackem measures the time you spend reading and writing each email. Assign it to a client or case with one button and export it.
Case and CRM links
File emails and time straight into the systems you use, starting with Clio and growing from there.
AI assistant
Use your own Claude, ChatGPT or Gemini account, or a local AI, for every AI feature. (Zackem AI needs no module — just tokens.)
Simple pricing
Start free and keep it free for personal use. Pro and every module are billed yearly; the bundle is also available month to month. Cancel anytime.
Free
$0 forever
Up to 2 email accounts, unified inbox, Focused and Other, unsubscribe manager, calendar.
Zackem Pro
$39/year
Unlimited email accounts. Calendar included.
All modules bundle
$149/year
Plan My Day, AI assistant, Time & billing and Case & CRM links. Or $14.99 month to month.
Zackem AI tokens
Pay only for the AI you use — no subscription. Every new customer gets 20 free tokens. Tokens are valid for 12 months from purchase.
30-day money-back guarantee on every purchase. See the refund policy. Payments are handled by Paddle, our merchant of record, who also charges any sales tax or VAT that applies where you live. Offices and teams: contact us.
Questions
Do you store my emails?
No. Zackem has no email servers. Your mail stays with your email provider, and a copy is kept on your own computer. When you use Zackem AI, only the email you ask about passes through our server to the AI and back — it is not stored.
Which email accounts work with Zackem?
Microsoft 365, Exchange, Outlook.com, Gmail, Yahoo, iCloud, AOL, Zoho and nearly any account that supports standard IMAP, including mail on your own domain. Setup steps for each are in the Help pages.
How do I connect Gmail?
At launch, Gmail connects with a Google app password: turn on 2-Step Verification in your Google account, create an app password, and paste it into Zackem once. See the step-by-step guide.
Does Zackem work on Mac?
Yes. Zackem runs on Windows 10 and 11 and on macOS 11 or newer — Macs with an Apple chip (M1 and later) and Intel Macs, in one download. One license works on both. Full system requirements.
What happens after the 30-day trial?
Nothing is lost. Zackem keeps working as the free version with up to 2 accounts, and you can buy Pro or a module at any time to unlock the rest.
How does billing work?
Pro and the modules are yearly subscriptions; the bundle is also offered monthly. Checkout and receipts come from Paddle, our merchant of record. Your plan renews automatically, you can cancel any time from the link in your receipt, and you keep access until the end of the paid period.
Does Zackem use AI on my mail without asking?
No. AI runs only when you click an AI button (Reply with AI, Summarize, Translate, the microphone…) or when you switch on an automatic option yourself, such as an automatic summary. You choose Zackem AI, your own AI account, or AI on your own computer.
What are Zackem AI tokens?
Tokens pay for the built-in AI. A normal AI reply costs about one token; summaries, translation, quick replies and dictation cost much less. New customers get 20 free tokens; packs start at $15 for 250 and are valid for 12 months. Your balance is under Settings → AI.
Does Zackem AI read or keep my email?
Only the email or draft you ask about is sent, through our server, to the AI provider, and the answer comes straight back. We do not store it, and it is never used to train AI. Details in the privacy policy.
Can I bring my mail from Outlook or Thunderbird?
Yes. Settings → Accounts → Import mail from another program reads Outlook .pst files, Thunderbird profiles, .eml exports from eM Client or Windows Mail, and Apple Mail .mbox files, and copies them into one of your accounts with the folders intact. Mail that is already on a server (Gmail, Outlook.com, Mailbird accounts) simply appears when you add the account.
What does "Zackem" mean?
It comes from the Yiddish tzuzamen — "all together." Every inbox, all together, in one place.
Try Zackem before anyone else
We're opening a small beta. Testers get a free license in exchange for honest feedback — especially if you use several email providers or work in Hebrew or Yiddish.